The keyboard and touchpad do not work in the operating system, but keyboard does work in the BIOS.

NOTE: Some VAIO® notebooks include a feature which allows the touchpad and touchpad buttons to be disabled using the Fn+F1 keys on the built-in keyboard. Try holding down the Fn key and press the F1 key to see if the touchpad and touchpad buttons are re-enabled.

Start the computer in Safe Mode and confirm if the keyboard and touchpad are functional.

NOTE: If the keyboard and touchpad are functional in Safe Mode then this is likely a software issue.

Confirm that the touchpad is enabled in both the VAIO Control Center and the Device Manager.

Within the VAIO Control Center:

Point to (but do not click) the lower-right or top-right corner of the screen, and then click to select the Search charm.

NOTE: The Windows Logo + Q key combination will also take you to the Search screen.

In the Search screen, in the Search field type VAIO Control Center, and then press the Enter key.

In the VAIO Control Center window, click Mouse and Keyboard or Input Device.

In the Device Manager window, double-click Keyboards, then double-click the Keyboard Device.

Ensure the Device status states, This device is working properly.

NOTE: If the Device status states that the device is not working properly, remove the device driver under Keyboards, then restart the computer.

If the keyboard and touchpad work in Safe Mode then, while still in Safe Mode, remove all third-party keyboard and touchpad software and restart the computer.

If the keyboard and touchpad do not work in Safe Mode then it is likely a hardware issue and the computer will require service. Begin the procedure to send your Sony product into a Sony facility to be repaired.